From Bugzilla Helper:
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; .NET CLR
1.0.3705)
Description of problem:
the snmpd service on more then 1 of our redhat 8.0 servers has been randomly
dying. The config (snmpd.conf) is the same and on many redhat 8.0 machines
that work fine. It's been happening on more and more systems as time goes by.
Version-Release number of selected component (if applicable):
net-snmp-5.0.6-8.80.2
How reproducible:
Sometimes
Steps to Reproduce:
1. service snmpd start
2. wait....
3. snmpd will die
Expected Results: serivce dies
Additional info:
This is our workaround for it, but this is a hack and shouldn't be needed:
/bin/ps auxww | /bin/grep snmpd | /bin/grep -v check | /bin/grep -v grep
> /dev/null || /sbin/service snmpd start

Here's a few suggestions:
1. What specific queries do you interrogate snmpd with?
2. Does it crash randomly or is there a pattern (every 5-6 hrs, 3-4 days?)
3. Do you have IPv6 enabled? (try "lsmod | grep ipv6" or see if
/proc/sys/net/ipv6 exists)
4. Read bug #85071 and see if it applies to you :)
5. If IPv6 isn't enabled, try reproducing by querying the same things over and
over manually (ie. I'm assuming you run somekind of network management software
against your snmpd.)
last but not least ...
5. strace the snmpd process until it dies or attach gdb and wait until it dies,
do "bt" and report it back..